DIAGNOSTICS OF GASOLINE FUEL SYSTEMS WITH DIRECT INJECTION

Abstract

A method of diagnosing fuel systems with direct injection by means of producing a pressure oscillation in a hydraulic accumulator is presented. Having obtained a signal from pressure sensor it is possible to register a pressure drop at the moment of injection. If the system has a malfunction, then the pressure drop will be higher.

Keywords

• diagnostics
• direct injection
• signal
• malfuctional
• oscillation
• pressure sensor
• waveform
• condition
• hydraulic accumulator